At least three people were injured Tuesday at a Lone Star College campus in the Houston area on Tuesday when one man opened fire on another during an apparent argument, hitting bystanders, authorities said.

Jed Young, executive director of communications for Lone Star College, told CNN that two people apparently began shooting at each other in an academic building on campus.

One of the shooters and two bystanders, both students, were wounded, Young said. One shooter was taken into custody, the other fled campus and was being sought.

KHOU-TV quoted a student, Brittany Mobley, as saying "two dudes basically get into an altercation" and one shot the other.

Harris County Sheriff's Maj. Armando Tello said authorities had detained a person of interest, the Associated Press reported.

KHOU-TV quoted one of its campus reporters as saying one of the injured was taken from the library while apparently handcuffed to a stretcher.

Although police feel the danger on campus had been "mitigated," Young said, officers were searching for a second suspect who fled to a nearby development area.

He was described as a black male, 18 to 20 years of age wearing a red shirt and Falcons cap.

The shooting occurred around noon at the North Harris campus, about 20 miles north of downtown Houston, one of six that serves the 90,000 students enrolled in the community college system.

Cody Harris, 20, said he was in a classroom with about six or seven other students waiting for a psychology class to start when he heard eight shots. He and other students looked at each other, said, "I guess we should get out of here," and fled.

"I was just worried about getting out," Harris said. "I called my grandmother and asked her to pick me up."

KPRC-TV quoted a student, Amanda Vasquez, as saying she heard "5 or 6" shots while sitting in English class. She said students quickly scrambled, hiding under desks.

An alert on the college's website called on students, faculty and staff "take immediate shelter where you are."

Aerial footage from local television stations showed police cars and ambulances parked on the campus. Emergency personnel could be seen tending to people on stretchers, while others ran from a building led by officers.

Nimitz high school nearby was also placed on lockdown during the ordeal.